| Abbreviation | Definition |
|---|---|
| AITR | Arabian International Tire Retreaders |
| AITR | l'Associazione Italiana Turismo Responsabile |
| AITS | American International Transportation Service |
| AITS | American International Transportation Services |
| AIV | Aluminum Intensive Vehicle |
| AIV | Aviation Impact Variable |
| AKI | Anti Knock Index |
| AKR | Anti Knocking Regulation |
| AL | Approach & Landing |
| AL | Arrival Locator |
| AL | Automotive Lenses |
| ALA | Aeroplane Landing Area |
| ALB | Albany County Airport |
| ALB | Albany- Rensselear Amtrak Station |
| ALB | Anti Lock Brakes |
| ALB | Anti-Lock Braking |
| ALC | Automatic Level Control |
| ALC | Automatic Location Communicators |
| ALD | Aircraft Landing Dynamics |
| ALF | Accelerated Load Facility |